Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5811012 | Deionized water or high purity water producing method and apparatus | Madoka Tanabe, Sakae Kaneko | 1998-09-22 |
| 4293423 | Process and apparatus for ion exchange by use of thermally regenerable resin | Kenji Kosaka, Takeshi Iwatsuka, Akira Hotogi | 1981-10-06 |